From ed50178c178bb3c66687118d3405a46864ca1670 Mon Sep 17 00:00:00 2001
From: ItsDrike <itsdrike@protonmail.com>
Date: Wed, 21 Feb 2024 20:50:17 +0100
Subject: [PATCH] Initial commit

---
 configuration.nix          | 105 ++++++++++++++++++++++++++
 flake.nix                  |  17 +++++
 guides/installation.md     | 146 +++++++++++++++++++++++++++++++++++++
 hardware-configuration.nix |  37 ++++++++++
 4 files changed, 305 insertions(+)
 create mode 100644 configuration.nix
 create mode 100644 flake.nix
 create mode 100644 guides/installation.md
 create mode 100644 hardware-configuration.nix

diff --git a/configuration.nix b/configuration.nix
new file mode 100644
index 0000000..58c9060
--- /dev/null
+++ b/configuration.nix
@@ -0,0 +1,105 @@
+# Edit this configuration file to define what should be installed on
+# your system.  Help is available in the configuration.nix(5) man page
+# and in the NixOS manual (accessible by running ‘nixos-help’).
+
+{ config, pkgs, ... }:
+
+{
+  imports =
+    [ # Include the results of the hardware scan.
+      ./hardware-configuration.nix
+    ];
+
+  # Bootloader.
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = true;
+
+  networking.hostName = "nixos"; # Define your hostname.
+  # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.
+
+  # Configure network proxy if necessary
+  # networking.proxy.default = "http://user:password@proxy:port/";
+  # networking.proxy.noProxy = "127.0.0.1,localhost,internal.domain";
+
+  # Enable networking
+  networking.networkmanager.enable = true;
+
+  # Set your time zone.
+  time.timeZone = "Europe/Bratislava";
+
+  # Select internationalisation properties.
+  i18n.defaultLocale = "en_US.UTF-8";
+
+  i18n.extraLocaleSettings = {
+    LC_ADDRESS = "sk_SK.UTF-8";
+    LC_IDENTIFICATION = "sk_SK.UTF-8";
+    LC_MEASUREMENT = "sk_SK.UTF-8";
+    LC_MONETARY = "sk_SK.UTF-8";
+    LC_NAME = "sk_SK.UTF-8";
+    LC_NUMERIC = "sk_SK.UTF-8";
+    LC_PAPER = "sk_SK.UTF-8";
+    LC_TELEPHONE = "sk_SK.UTF-8";
+    LC_TIME = "sk_SK.UTF-8";
+  };
+
+  # Configure keymap in X11
+  services.xserver = {
+    layout = "us";
+    xkbVariant = "";
+  };
+
+  # Define a user account. Don't forget to set a password with ‘passwd’.
+  users.users.itsdrike = {
+    isNormalUser = true;
+    description = "ItsDrike";
+    extraGroups = [ "networkmanager" "wheel" ];
+    packages = with pkgs; [];
+  };
+
+  # Allow unfree packages
+  nixpkgs.config.allowUnfree = true;
+
+  # List packages installed in system profile. To search, run:
+  # $ nix search wget
+  environment.systemPackages = with pkgs; [
+  vim
+  git
+  #  vim # Do not forget to add an editor to edit configuration.nix! The Nano editor is also installed by default.
+  #  wget
+  ];
+
+  # Some programs need SUID wrappers, can be configured further or are
+  # started in user sessions.
+  # programs.mtr.enable = true;
+  # programs.gnupg.agent = {
+  #   enable = true;
+  #   enableSSHSupport = true;
+  # };
+
+  # List services that you want to enable:
+
+  # Enable the OpenSSH daemon.
+  # services.openssh.enable = true;
+
+  # Open ports in the firewall.
+  # networking.firewall.allowedTCPPorts = [ ... ];
+  # networking.firewall.allowedUDPPorts = [ ... ];
+  # Or disable the firewall altogether.
+  # networking.firewall.enable = false;
+
+  # This value determines the NixOS release from which the default
+  # settings for stateful data, like file locations and database versions
+  # on your system were taken. It‘s perfectly fine and recommended to leave
+  # this value at the release version of the first install of this system.
+  # Before changing this value read the documentation for this option
+  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
+  system.stateVersion = "23.11"; # Did you read the comment?
+
+  nix = {
+    package = pkgs.nixUnstable;
+    extraOptions = ''
+      experimental-features = nix-command flakes
+    '';
+  };
+}
+
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..0e267af
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,17 @@
+{
+    description = "ItsDrike's NixOS configuration";
+
+    inputs = {
+      # the version here should match your system.stateVersion in configuration.nix
+      nixpkgs.url = "github:NixOS/nixpkgs/nixos-23.11"; 
+    };
+
+    outputs = { self, nixpkgs, ...} @ inputs: {
+        nixosConfigurations = {
+            nixos = nixpkgs.lib.nixosSystem {
+                system = "x86_64-linux";
+                modules = [ ./configuration.nix ];
+            };
+        };
+    };
+}
diff --git a/guides/installation.md b/guides/installation.md
new file mode 100644
index 0000000..ed4ca1c
--- /dev/null
+++ b/guides/installation.md
@@ -0,0 +1,146 @@
+# Installation
+
+This is a full NixOS installation guide, from live cd to a working OS.
+Once done, you will be left with a complete system, that uses my configuration.
+
+This installation will push to use flakes out of the box, configuration.nix will
+only be needed to add support for flakes and rebuild.
+
+## Live ISO
+
+This assumes you've chosen one of the ISO images with a graphical installer, and
+followed though with the installation, getting you to a basic NixOS installation.
+
+During this installation, make sure you allow non-free programs, and in the desktop environment selection, pick the option without any DE, we'll get to install that ourselves.
+
+## Set up configuration.nix
+
+First thing you'll need to do is to make your useer account own the
+`/etc/nixos` directory. You'll want to do this to allow you to easily manage
+your config with git (which is a requirement when using flakes). You can use
+system wide git, however it is much more convenient to just leave it to the
+user, as you'll have your git configuration there.
+
+```sh
+cd /etc/nixos
+sudo chmod -R itsdrike:users .
+```
+
+Out of the box, NixOS only comes with `nano` editor, so we'll have to use that to edit the `configuration.nix` for the first time.
+
+```sh
+nano configuration.nix
+```
+
+In there, change the `environment.systemPackages = with pkgs; [];` like, and include `git` and `vim`.
+
+After that, let's enable flakes, by adding the following at the end of your `configuration.nix` (but still within the function body - before the last `}`):
+
+```nix
+nix = {
+    package = pkgs.nixUnstable;
+    extraOptions = ''
+        experimental-features = nix-command flakes
+    ''
+};
+```
+
+Now you can save the changes and rebuild the system:
+
+```sh
+sudo nixos-rebuild switch
+```
+
+## Set up flakes
+
+Now, since a git repository is required for flakes, let's set up git:
+
+```sh
+git config --global user.email "itsdrike@protonmail.com"
+git config --global user.name "ItsDrike"
+```
+
+Now we have 2 options, the first one I'll show will set up my configuration
+from this repository. Once done, you will have your system set up in the same
+way that I do. In the second option, I will go over a basic setup to create
+your own flake.
+
+## Set up with my configuration
+
+Finally, we're ready to migrate to flakes. At this point, you can simply pull this repository
+to the `/etc/nixos` directory, to get my setup, like so:
+
+```sh
+git init
+git remote add origin https://github.com/ItsDrike/nixdots
+git branch -C main
+git pull
+```
+
+## Create your own custom flake
+
+Initialize an empty git repository:
+
+```sh
+git init
+```
+
+Create a very basic `/etc/nixos/flake.nix`:
+
+```sh
+{
+    description = "ItsDrike's NixOS configuration";
+
+    inputs = {
+      # the version here should match your system.stateVersion in configuration.nix
+      nixpkgs.url = "github:NixOS/nixpkgs/nixos-23.11";
+    };
+
+    outputs = { self, nixpkgs, ...} @ inputs: {
+        nixosConfigurations = {
+            nixos = nixpkgs.lib.nixosSystem {
+                system = "x86_64-linux";
+                modules = [ ./configuration.nix ];
+            };
+        };
+    };
+}
+```
+
+This flake will still rely on your `configuration.nix`, we will eventually get
+to a config which does not need this file, but to make starting out with flakes
+simple, we'll do it in this way for now.
+
+Let's add things to git!
+
+```sh
+git add flake.nix
+git add configuration.nix
+git add hardware-configuration.nix
+```
+
+Now you can run `sudo nixos-rebuild switch`. Yay, you're now using NixOS in flakes mode!
+
+> [!NOTE]
+> If you run the `sudo nixos-rebuild switch` command before adding all of these
+> files to git, you will get an error, so it really is a requirement to have
+> your configuration in a git repository when you're using flakes.
+
+You can notice that this also created a `flake.lock` file, containing the exact
+versions of all of the packages you're using. You can (but don't have to) add
+this file to git too: `git add flake.lock`.
+
+Let's make a commit:
+
+```sh
+git commit -a -m "Initial commit"
+```
+
+## Updating
+
+Over time, to update the software that's installed on your machine, you can use
+`nix flake update`, to update your `flake.lock` file, and then `nixos-rebuild
+switch`, to get switch your system to the new dependencies.
+
+> [!TIP]
+> This replaces the legacy (non-flake) regime's command: `nixos-rebuild switch --upgrade`
diff --git a/hardware-configuration.nix b/hardware-configuration.nix
new file mode 100644
index 0000000..bcec921
--- /dev/null
+++ b/hardware-configuration.nix
@@ -0,0 +1,37 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{ config, lib, pkgs, modulesPath, ... }:
+
+{
+  imports = [ ];
+
+  boot.initrd.availableKernelModules = [ "ata_piix" "ohci_pci" "ehci_pci" "ahci" "sd_mod" "sr_mod" ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" =
+    { device = "/dev/disk/by-uuid/86d578b1-fd70-4f72-918d-44d921fe8a73";
+      fsType = "btrfs";
+      options = [ "subvol=@" ];
+    };
+
+  fileSystems."/boot" =
+    { device = "/dev/disk/by-uuid/7636-1642";
+      fsType = "vfat";
+    };
+
+  swapDevices = [ ];
+
+  # Enables DHCP on each ethernet and wireless interface. In case of scripted networking
+  # (the default) this is the recommended approach. When using systemd-networkd it's
+  # still possible to use this option, but it's recommended to use it in conjunction
+  # with explicit per-interface declarations with `networking.interfaces.<interface>.useDHCP`.
+  networking.useDHCP = lib.mkDefault true;
+  # networking.interfaces.enp0s3.useDHCP = lib.mkDefault true;
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  virtualisation.virtualbox.guest.enable = true;
+}
+